SoundPool: Do not sleep on stop for USAGE_GAME or on BUFFER_END

Test: SoundPoolApplication, SoundPoolOggTest, Games
Bug: 139787914
Bug: 139788416
Bug: 140579743
Bug: 140779732
Merged-In: I83b9b1d61b65dcc4a73d676e1f8be1e022c70302
Change-Id: I83b9b1d61b65dcc4a73d676e1f8be1e022c70302
(cherry picked from commit a527524356a9a6bc9597e4d06cee5c02cf936a68)
1 file changed